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   "source": [
    "# Day19\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "source": [
    "<https://www.bilibili.com/video/BV1ht4y1D7H9?p=20>\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
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   "source": [
    "# underscore\n",
    "\n",
    "英\\[ˌʌndəˈskɔ:(r)\\] 美\\[ˌʌndərˈskɔ(r)\\]\n",
    "\n",
    "**[释义](https://fanyi.baidu.com/#en/zh/underscore)**\n",
    "\n",
    "n. 下划线，底线\n",
    "\n",
    "v. 强调，突出; 在（字词、句子等）下画线\n",
    "\n",
    "**例句**：\n",
    "\n",
    "These results underscore the value of rescue medications in averting psychotic relapse.  \n",
    "这些结果显示了救护性治疗对避免精神病复发的价值.\n",
    "\n",
    "A word character is any letter, decimal digit, or punctuation connector such as the underscore.  \n",
    "单词字符是任何字母 、 十进制数字或标点连接符(如下划线).\n",
    "\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
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   },
   "source": [
    "# performance\n",
    "\n",
    "英\\[pəˈfɔːməns\\] 美\\[pərˈfɔːrməns\\]\n",
    "\n",
    "**[释义](https://fanyi.baidu.com/#en/zh/performance)**\n",
    "\n",
    "n. 表演; 演技; 表现; 执行\n",
    "\n",
    "**例句**：\n",
    "\n",
    "His performance at the concert last night proved that he is in the top flight of international pianists.  \n",
    "昨晚他在音乐会上的演奏证明他在国际钢琴家中居首位.\n",
    "\n",
    "The audience was fascinated by their superb performance.  \n",
    "他们的精彩表演使观众看得入了迷.\n",
    "\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
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    }
   },
   "source": [
    "# rectangle\n",
    "\n",
    "英\\[ˈrektæŋɡl\\] 美\\[ˈrektæŋɡl\\]\n",
    "\n",
    "**[释义](https://fanyi.baidu.com/#en/zh/rectangle)**\n",
    "\n",
    "n. [数]长方形，矩形\n",
    "\n",
    "**例句**：\n",
    "\n",
    "\n",
    "He handed me a little rectangle of white paper.  \n",
    "他递给我一张小小的长方形白纸片。\n",
    "\n",
    "\n",
    "Suppose the width of a rectangle is x metres.  \n",
    "设长方形的宽是x米。"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "source": [
    "# second\n",
    "\n",
    "英\\[ˈsekənd , sɪˈkɒnd\\] 美\\[ˈsekənd , sɪˈkɑːnd\\]\n",
    "\n",
    "**[释义](https://fanyi.baidu.com/#en/zh/second)**\n",
    "\n",
    "n. 秒; 瞬间; 次货; 第二份食物\n",
    "\n",
    "adv. 第二; 其次; 以第二位\n",
    "\n",
    "vt. 支持; 临时调派; 附议; 赞成提案\n",
    "\n",
    "**例句**：\n",
    "\n",
    "You will need a second pair of shoes.  \n",
    "你需要再准备一双鞋.\n",
    "\n",
    "The young German runner finished a creditable second.  \n",
    "这名年轻的德国赛跑运动员获得了当之无愧的第二名.\n",
    "\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
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   "source": [
    "# reduce\n",
    "\n",
    "英\\[rɪˈdjuːs\\] 美\\[rɪˈduːs\\]\n",
    "\n",
    "**[释义](https://fanyi.baidu.com/#en/zh/reduce)**\n",
    "\n",
    "vt. 减少; 缩小; 使还原; 使变弱\n",
    "\n",
    "vi. 减少; 节食; 蒸发; （液体）浓缩变稠\n",
    "\n",
    "**例句**：\n",
    "\n",
    "It reduces the risks of heart disease  \n",
    "这降低了患心脏病的风险。\n",
    "\n",
    "The government must make new policies to reduce unemployment.  \n",
    "政府必须制定减少失业的新政策.\n",
    "\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "source": [
    "# 回顾\n",
    "\n",
    "**暂停5秒，回想一下我们今天所学的单词**\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "source": [
    "**准备好了吗?**\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "source": [
    "1. underscore\n",
    "2. performance\n",
    "3. rectangle\n",
    "4. second\n",
    "5. reduce\n"
   ]
  }
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